diff --git a/src/passes/1-parser/cameligo/dune b/src/passes/1-parser/cameligo/dune
index 730290696..0c9e80bf0 100644
--- a/src/passes/1-parser/cameligo/dune
+++ b/src/passes/1-parser/cameligo/dune
@@ -2,13 +2,15 @@
 
 (menhir
  (merge_into Parser)
- (modules ParToken Parser)
+ (modules
+    ParToken Parser)
  (flags -la 1 --table --strict --explain --external-tokens LexToken))
 
 (library
  (name parser_cameligo)
  (public_name ligo.parser.cameligo)
- (modules AST cameligo Parser ParserLog LexToken)
+ (modules
+    AST cameligo Parser ParserLog LexToken)
  (libraries
    menhirLib
    parser_shared
@@ -21,16 +23,17 @@
 (executable
   (name LexerMain)
   (libraries
-   parser_cameligo)
+     parser_cameligo)
   (modules
-    LexerMain)
+     LexerMain)
   (flags (:standard -open Parser_shared -open Parser_cameligo)))
 
 (executable
   (name ParserMain)
   (libraries
-   parser_cameligo)
+     parser_cameligo)
   (modules
-    ParserAPI
-    ParserMain)
+     ParErr
+     ParserAPI
+     ParserMain)
   (flags (:standard -open Simple_utils -open Parser_shared -open Parser_cameligo)))
diff --git a/src/passes/1-parser/pascaligo/dune b/src/passes/1-parser/pascaligo/dune
index 53c2d8385..9cf51de40 100644
--- a/src/passes/1-parser/pascaligo/dune
+++ b/src/passes/1-parser/pascaligo/dune
@@ -20,19 +20,15 @@
 (executable
   (name LexerMain)
   (libraries
-     hex
-     simple-utils
-     tezos-utils
-     parser_pascaligo)
-  (modules
-     LexerMain)
+     hex simple-utils tezos-utils parser_pascaligo)
+  (modules LexerMain)
   (flags (:standard -open Parser_shared -open Parser_pascaligo)))
 
 (executable
   (name ParserMain)
-  (libraries
-     parser_pascaligo)
-  (modules ParserMain)
+  (libraries parser_pascaligo)
+  (modules
+     ParErr ParserAPI ParserMain)
   (flags (:standard -open Simple_utils -open Parser_shared -open Parser_pascaligo)))
 
 (executable
diff --git a/src/passes/1-parser/reasonligo/dune b/src/passes/1-parser/reasonligo/dune
index 8d65f1363..57fd2b818 100644
--- a/src/passes/1-parser/reasonligo/dune
+++ b/src/passes/1-parser/reasonligo/dune
@@ -8,31 +8,33 @@
 (library
  (name parser_reasonligo)
  (public_name ligo.parser.reasonligo)
- (modules SyntaxError reasonligo LexToken Parser)
+ (modules
+    SyntaxError reasonligo LexToken Parser)
  (libraries
-   menhirLib
-   parser_shared
-   parser_cameligo
-   str
-   simple-utils
-   tezos-utils
-   getopt)
+    menhirLib
+    parser_shared
+    parser_cameligo
+    str
+    simple-utils
+    tezos-utils
+    getopt)
  (flags (:standard -open Simple_utils -open Parser_shared -open Parser_cameligo)))
 
 (executable
   (name LexerMain)
   (libraries
-   parser_reasonligo)
+     parser_reasonligo)
   (modules
-    LexerMain)
+     LexerMain)
   (flags (:standard -open Parser_shared -open Parser_reasonligo)))
 
 (executable
   (name ParserMain)
   (libraries
-   parser_reasonligo
-   parser_cameligo)
+     parser_reasonligo
+     parser_cameligo)
   (modules
+    ParErr
     ParserAPI
     ParserMain)
   (flags (:standard -open Simple_utils -open Parser_cameligo -open Parser_shared -open Parser_reasonligo)))